Fountain-pen.



No, 825,442. PATENTED JULY10,-1906.

P. W. 13231353. TOUNTAIE Paw.

APPLIOATIQX SHED TEE SB 1908 the same. in like manner and for the like1311:-

' tract the flexible tube, while when the thumb which the following is aspecification.

of-rubber or other suitable material, inserted into the lower end of thereservoir, the tube cored iston-rod with aperturedflun or at- UNITEDSTATES PATENT OFFICE.

Specification of Letters Patent.

Patented Jul 10, 1906.

A ellant use February 2c, 1906. Serial No. 302,341.

To all whom it may concern.-

Be it known that I, Fnnnsnrorc WILLIAM BENDER, a citizen of the UnitedStates, residing at I-Iobolren, in the county of Hudson and State of NewJersey, have invented new and useful Improvements in Fountain-Pens, of

The object of m invention is'to provide a device by means 0 which.fountain-pens ma be filled by means of suction; I aoeom lis this by .twodevices, but each of Whic involves the same rinciples, as will moreparticularly hereina ter appear;

My invention rel ates to a reservoir for holding a tube made of rubberor other suitable material, the upper end of the reservoir beingfurnished with a cap through an opening in which a cored rod isinserted, attached to the lower end of which is an aplertured plungercorresponding in she a Wit the interior of the reservoir, and w 'chcored piston rod slides up and down through a corresponding core in thecap, and the upper end of the pietonrod is equipped with a knob alsosupplied with a corresponding'core.

My invention also relates to a fiercible tube,

bein slip ed over a collar at the end of the core fee to which the penis attached. The core in the piston-rod, plunger, and cap may beeliminated and an aperture in the reservoir substituted, and by openingand closing ose as the core in piston-rod, plunger, and ob attain thesame result, but reduce cost of manufacture, This form of constructioninvolves the same principle; but instead of a tache I construct thepiston-r0 an plungel in solid form and admitor exclude the air for theurpose of bring' about the suction for fil g the tube in t e reservoirbycovering or, uncovering the aperture in the reservoir as is requiredfor that urpose.

Preliminary to'feeding the to e in the reservoir the aperture is closedwith the thumb or convenient finger, and the PiSllOIlfI'Od isthen'pushed downward as far as the knob on the upper end of thepiston-rod will allow. The p anger will cause 'theair in the reservoirto contract, in doing which it will also conor finger is removed fromtheaperture the air is allowedto escape fromthetube, thuswith pen inplace.

plunger and to the upper end ofthe pen attached to the feed B.

causing the flexible tube in the reservoir to resume its normal shape,thereby bringing about the suction and causing the ink or. other liquidto pass into the tube ready for use and in like manner and withsimilarparts, as hereinafter more fully set forth in the otherconstruction of my filling device. I attain these objects by means ofthe mechanism illustrated in. the accompanying drawings, in

Figure 1 is a side view of the fountain-pen Witl the piston-rodwithdrawn preliminary to filling with all the several parts assembled.Fig. 2 is a side view of the fountain-pen with the piston-rod pusheddown and the tube contracted preliminary to filling with all the severalparts assembled. Fig. 3 is a view of the flexible tube attached to the"cored feed Fig. 4 is a cross-section showing the cored cap to'heinserted into the upper end of the reservoir. Fig. 5 is the] iston rodand plunger attached.- Fig. 6 1s a cross-section showin cored piston-rodand a srtured plunger. '2' is a cross-section o the cored feed with penattached. Fig. 8 is a crosssection showing solid piston-rod and plungerwith aperture in reservoir.

The reservoir A is closed air-tight at the ulpper end by inserting theprojection a. into t c reservoir until the under surfaceof the collar bis flush with the u per end 0 of the reservoir. The iston-rod isinserted into and through the ore d to move freely up and down. Attachedto the piston-rod is the p rod is fastened the kno 1, with a corresending core If The piston-rod is furnishc with a core it, correspondingwith core I, and a erture m. The a rturem is an opening in the pc er wch corresponds with the core S it t e lower end'of reservoir A isinsorted the feed B, so that the lower end of the reservoir A is flush'withthe collanb', thus closing the reservoir air tight. The tube 0,however,fis first slipped over the projection c" c is asleeveintegralwith'nozsle B and surrounding the forward end of the tube a, saidsleevejorrning a seat for the reservoir A. The feed Bis provided with acore oflahro h which the ink flows from the tube G into t e To fill thepen, the folk) procedure is required,' viz: The piston-rod {is drawnupwardly and outwardly until the plunger fis' flush with the lower endof the projection a I as shown in Fig. 1. The core I isthen close withthe finger, thus shutting of? the air from r a. erture m and out at thecore 3, allowing t e tube C to resume normal shape, in (loin; which theink or other fluid is sucked up through the core 0 into the tube whereit remains ready for use.

What I claim as my ii'ivention, and'desire to secure by Letters Patent,

1. In a fountain-pen, a reservoir, 21 pen-set tion, carried at theforward end of said reser- Voir, an elastic tube, shorter than saidreser- Voir and closed at the rear end, mounted on said pen-section, andlying within said reservoir, a piston mounted in said reservoir at therear of said tube, an operating-rod carried by the said piston, passingthrough the rear end of said reservoir, and means for admitting the airbetween said tube and piston at any position of the piston.

J. in a iountain-pen, a reservoir, a pen-serftion carried at the forwardend of said reservoir, an elastic tube shorter than said reservoir, andciosed at the rear end, mounted on said pen-section, and lying withinsaid reservoir, a piston mounted in said reservoir at the rear end ofsaid tube, and an operatingrod, carried by said piston, passing'throughthe rear end of said reservoir, said stem and piston having a hollowcore for admitting air.

In Witness whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERICK \l'lLLlAlI FENDER.

Vl'i tnesses:

ARTHUR J. YESTERMAYR, HOWARD S. Kixxsr.

